REPUT: An Edit program for DOT Discrete Ordinates Neutron and Secondary
Gamma-Ray Results.

DOTCOM: A Program for Combining DOT Discrete Ordinates Neutron and
Secondary Gamma-Ray Results for Different Source Energies into
Results for an Arbitrary Source Spectrum.

BSDPRINT: An Edit Program for O5R-ACTIFK-OGRE Neutron and Secondary
Gamma-Ray Results.

BSDCOM: A Program for Combining O5R-ACTIFK-OGRE Neutron and Secondary Gamma-Ray Results for Different Source Energies into Results for
an Arbitrary Source Spectrum.

ANGLE8: An Edit Program for O5R-ACTIFK Angular Dependent Neutron
Results.

BSDCOM(8ANGLE): Results for an Arbitrary Source Spectrum.

3. CONTRIBUTOR

Oak Ridge National Laboratory, Oak Ridge, Tennessee.

4. HISTORICAL BACKGROUND AND INFORMATION

The DOT and O5R-ACTIFK-OGRE results for neutron and secondary gamma-ray results in
air-over-ground geometry were generated by E. A. Straker of Oak Ridge National Laboratory.
The results were preserved on magnetic tape and are available to those who wish to utilize them.

5. APPLICATION OF THE DATA

DLC-5/HALLMARK data can be used to study the energy, time, and angular distribution of
neutrons and secondary gamma rays as a function of slant range from a point isotropic neutron
source 50 feet above the air-ground interface. The data are for neutron sources in given energy
bands. Some of the retrieval programs can be used to edit the data in tabular form. Other
retrieval programs can combine results for various neutron source energies to give the results for a
neutron source of arbitrary energy spectrum.

6. SOURCE AND SCOPE OF DATA

DLC-5/HALLMARK data are the results of Monte Carlo (CCC-17/O5R--ACTIFK--CCC-46/OGRE) and discrete ordinates (CCC-89/DOT) calculations of neutron fluxes and doses and
secondary gamma-ray fluxes and doses due to a point isotropic neutron source located 50 feet in air
above the ground surface. Sources of various energies up to 15 MeV were used and slant ranges
up to 1500 meters were considered. The neutron source energy range from 0.111 to 15 MeV was
divided into 8 non-overlapping intervals and separate calculations, in which the source was
assumed constant in energy, for each interval. The discrete ordinates calculations considered one
more interval from 3.3 to 111 keV in which the source was assumed to be proportional to 1/E.

Information about the composition assumed for air and ground, the source energy bands and
slant ranges chosen, the angular quadrature employed, and the dose conversion factors used can be
found in the packaged document.

The Monte Carlo results include time-integrated and time-dependent neutron and gamma-ray
dose rate as a function of slant range. Neutron fluxes for various time and energy bins for two
directions are given for each range. Gamma-ray fluxes for various time and energy bins for four
directions are also given for each range. Neutron fluxes for various time and energy bins for 8
angles are given for two slant ranges: 350.3 and 975.1 meters. Fractional standard deviations for
all the above quantities are included in the DLC-5/HALLMARK data. The Monte Carlo results
considered distributions of neutrons with energies greater than 0.1 MeV and also the corresponding
distributions of secondary gamma rays produced by inelastic scattering and fast-neutron capture.
The Monte Carlo results that include the 2-direction neutron data occupy 8 files of computer tape,
each file corresponding to one of the eight neutron source energy intervals studied (non-overlapping energy intervals between 0.111 and 15 MeV). The eight-direction neutron results are
contained on one additional file of computer tape.

The discrete ordinates results for each of the 40 energy groups include the fluence in 40
directions for each slant range. The 40 energy groups include 22 neutron and 18 gamma-ray
groups. The calculations were S8P3 with a total of 2790 mesh points. Neutrons of all energies
were considered as well as the corresonding secondary gamma rays. The discrete ordinates results
occupy 9 files of computer tape, each file corresponding to one of the 9 neutron source energy
intervals studied (non-overlapping energy groups between 3.3 keV and 15 MeV).

7. DISCUSSION OF THE DATA RETRIEVAL PROGRAMS

There are six programs packaged with DLC-5/HALLMARK. An edit and a combination
program are provided for each of the three types of data (9 files of discrete ordinates results, 8 files
of Monte Carlo results, and 1 file of Monte Carlo results for 8 directions).

REPUT is the edit program for discrete ordinates results. It will edit any or all of the nine
files of HALLMARK discrete ordinates results and will produce tables like those shown in the
packaged document. It will also edit results for an arbitrary source spectrum which have been
produced by DOTCOM.

DOTCOM operates on the same HALLMARK data as REPUT. It produces results for an
arbitrary source spectrum, edits these results in the same format as REPUT, and will write the
results on tape for later use. The fraction of source particles in each of the nine non-overlapping
energy intervals is input by means of cards. The results for several different sources may be
produced in the same run.

BSDPRINT edits the 8 files of HALLMARK Monte Carlo results and produces tables such as
those in the packaged document. It will also edit results for an arbitrary source spectrum which
have been produced by BSDCOM.

BSDCOM operates on the same HALLMARK Monte Carlo results as BSDPRINT. It produces
results for an arbitrary source spectrum and punches them on cards for subsequent editing by
BSDPRINT. The user specified the fraction of neutrons in each of the eight source energy
intervals.

ANGLE8 is the edit program for the one file of HALLMARK eight angle Monte Carlo results.
It will also edit results from BSDCOM (8ANGLE).

BSDCOM (8ANGLE) produces results for an arbitrary spectrum as specified by the user. It
operates on the same HALLMARK data as ANGLE8 and punches results on cards for subsequent
editing by the latter program.

8. DATA FORMAT AND COMPUTER

EBCDIC card images; IBM 360/370.

9. TYPICAL RUNNING TIME

On the IBM 360/91 computer, DLC-5/HALLMARK compiled and ran the packaged sample
problems in the following times (m = minutes, cpu = central processing unit):

Included are the referenced documents and two DS/HD 5.25 (1.2MB) DOS diskettes which
contain the source code and sample problem input and output, plus data for DOT and ANAL-OGRE and cross sections for DOT.